USGS Water-Year Summary 2020
13015000 GROS VENTRE RIVER AT ZENITH, WY
LOCATION - Lat 43°33'26", long 110°45'46" referenced to North American Datum of 1983, in SW 1/4 NW 1/4 SW 1/4 sec.34, T.42 N., R.116 W., Teton County, WY, Hydrologic Unit 17040102, Teton Village quad., on downstream side of county road bridge railing, 0.5 mi southwest of Jackson Hole Country Club, and 5.5 mi north of Jackson, Wyoming.
DRAINAGE AREA - 683 mi².
PERIOD OF RECORD - July to September 1917, July to September 1918 (monthly discharge only, published in WSP 1317), October 1987 to current year (seasonal).
GAGE - Water-stage recorder and crest-stage gage. Elevation of gage datum is arbitrary.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of May 18, 1927, when landslide about 12 mi upstream washed out, released about 60,000 acre-ft of impounded water (discharge not determined).
EXTREMES FOR PERIOD OF RECORD - Maximum daily discharge, 6,170 ft³/s June 6, 1997; maximum gage height, 22.77 ft, June 10, 1996; no flow on many days.